Locomotive structure



Jan. 17, 1928.

, W. O. ASHE LOCOMOTIVE STRUCTURE 2 Sheets-Sheet 1 Filed March 30. 192'? Inre/175'r' MW/M/f/ 0 4:58 6/ w w:

' Jan. 17, 1928.

W. O. ASHE LOCOMQTIVE STRUCTURE Filed March 30, l927 2 Sheets-Sheet 2 U. a w

i rlllllllillllllllllllll. lllllllllllll IL Patented Jan. 17, 1928.

WILLIAM O. ASHE, ST. LOUIS, MISSOURI, ASSIGNOR 1,656,717 PATENT oFFIcE.

To COMMONWEALTH STEEL COMPANY, OF GRANITE CITY, ILLINOIS, A CORPORATION 01 NEW JERSEY.

LOGOMOTIV-E STRUCTURE.

Application filed March 30, 1927. Serial No. 179,495.

My invention relates to railway rolling stock and is particularly adapted for electric locomotives and consists in an improved radius bar and locomotive frame,assembly.

5 In electric locomotives now in use a common arrangement is to'have a radius bar fulcrum casting, for pivoting the trailer truck, detachably secured to the rearportion or cradle ofthe locomotive frame and projecting forwardly thereof and beneath part of the electric motor mounted on the rear driving axle of the locomotive. When it is desired to remove the motor,it is'necessary to completely disconnect the radius bar fulcrum which is usually a heavy casting and difiicult to handle. p

The main object of, my invention is to simplify the operation of removing the mo tor, and, briefly, I accomplish thisobject bypivoting the fulcrum casting to the 1000- V motive frame or cradle and swinging the fulcrum casting on its pivot out of' its functioning position where it projects beneath the motor.

An additional object of m invention is to provide a cradle member an radius'barfulcrum member in which theforces in both members are, resisted by abutting faces on the two members rather than by the bolts or other elements which hold the two members in assembled position.

In the accompanying drawings which illustrate a selected embodiment of my in vention,-

Figure 1 is a longitudinal vertical section through an electric locomotive cradle and the radius bar fulcrum assembled therewith, the reardriving wheel and its motor" and the trailer truck being shown in dot-anddashlines. i

Figure 2 is a front elevation of the cradle with the motor supporting bar and the supported lugs on the motor being shown in dot-and-dash lines. This figure is drawn on a larger scale than Figure 1.

Figure 3 is a top view of the radius bar fulcrum casting also drawn on a larger scale than indicated in Figure 1.

The locomotive cradle is indicated at 1 and is shown as being formed of a onepiece casting which may be applied to the remainder of the locomotive frame but it will be understood that this element of my invention may constitute a part of the locotween and motiveframe instead of being formed separately therefrom. i

The front end of this casting is provided with bearings 2 for a drawbar and the front endof this casting is-also provided witha shelf 3 on which rests the yoke 4, the ends i of which are depressed and support the motor lugs 5. The lower portion of the cradle 1s provided-withdepending ears 6 and beto the rear .ofthese ears is a depending lug 7 with a forwardly project ing flange 8; The radius bar fulcrum mem-i her 9 is supported at one endby a horizontal pivot pin 10 which extends through ears 6 and the forward end of the radius bar fulcrum casting is detachably secured to the forward portion of the cradle by means of bolts1l.3 f The rear end of fulcrum member 9 is provided with a rearwardly projecting flange 12 adapted toengage flange .8 when the member 9 is in the horizontal position illustrated. The: upper face of member 9 is provided with an upwardl extendingfian'ge l3 adapted to engage a t rust-receiving pad 14" provided on the forward end of cradle 1. FlangeslQ and 8 serve to relieve pin 10 of the weight of the fulcrum casting and of the downward thrust of the rear end of the casting caused by upward thrust on the trailer truck pivot 15. Flange 13 and pad 35 ltserve to relieve the pin 10 'andbolts"11 of anydraft and bufling stresses. It will be understood thatthe holes for pin '10 and bolts 11 may be enlarged or slotted so that these flanges and thepad may function as mentioned. Suitable pads 16 and 17 are provided on the opposing faces of the cradle and fulcrum casting adjacent bolts 11.

It will be understood that these interengaging surfaces on the cradle and radius bar fulcrum will bemachined tOIIlOI'Q accurately fit each other. a 1

When the locomotive is operating, the

- cradle and radius bar fulcrum casting will bear the ordinary relation to each other and will be as strong as the ordinary construction in which these parts are bolted together.

When it is desired to remove the motor, the

dicated. The yoke 4 may then be unbolted from the motor lugs and from the cradle shelf 3 and moved forwardly and downwardly and the motor can then be lowered into the drop pit;

Obviously the details of my invention may be varied in anumber of ways without departing from the spirit of my invention, and I contemplate the exclusive use of all such modifications of the structure illus tratedand described as fall within the scope of my claims.

I claim: 7 V 1. In combination, a locomotive frame member, and a radius bar fulcrum member pivoted on said frame member to swing into and out of functioning position.

2. In a locomotive, a. frame member, and a, 'adiusbar fulcrum member pivoted on said frame member to swing in a vertical plane to and from a functioning position.

3. In a locomotive, a f'ame'member, a radius bar fulcrum member pivoted on said frame member to swing vertically, and a trailer truck radius bar .pivotally connected to said fulcrum member to move about the same horizontally. u

4. In a locomotive, a frame member, a radius bar fulcrum member pivoted at one. end to said frame member so as to swing verti :ally, and a trailer truck pivoted to said fulcriunmember at the other end thereof so as to swing horizontally.

5. In combination, a locomotive frame member, and a radius bar fulcrum member pivoted at one end on said frame to swing into and out of functioning position and extending horizontally from its pivotal con nection with said frame member and provided with a radius bar pivot at its opposite end. a p i 6. In combination, a locomotive frame member, a radius bar fulcrum member pivoted on said frame member to swing into and out of functioning position, detachable means for holding said fulcrum member in assembly with said frame member, and interengaging elements on said members for resisting the forces in each member independently of said means.

T. Ina locomotive, a cradle, a radius bar fulcrum member pivoted on said cradle behind the forward end of the latter and exin front of said end, a bolt located the pivot point and said end for holding said fulcrum member in assembled relation with said cradle, and a fulcrum bearing for atrailer truck on the forward end of said fulcrum member.

8. In a locomotive, a frame member, a radius bar fulcrum member pivoted to said frame member to swing vertically, and interengaging surfaces on said members adjacent to their pivotal connection for supporting the adjacent portion of said fulcrum member irrespective of said connection.

'9. In a locomotive, a frame member, a radius bar fulcrum member pivoted to said frame member to swing vertically, andinterengaging surfaceson said members adjacent to the forward end of said frame member for resisting buffing and pulling forces irrespective of the pivotal connection between said members,

10. In an electric locomotive, a driving motor, a frame member at one side of said motor and supporting the later, a radius bar fulcrum assembled with said member and normally extending under said motor, said fulcrum being movable away from under said motor without being deuiched from said member.

11. A locomotive cradle having bearing for supporting a radiusbar pivot pin.

12; A locomotive cradle having an. integral bearing for sup jaorting a radius bar fulcrum pivot pin and aradius bar fulcrum support ing element adjacent to said bearing.

13. A locomotive cradle having an integral bearing for supporting a radius bar fulcrum pivot pin,anda radius bar fulcrum supporting element and a radius bar tliri'lst pad in spaced relation with said bcarin 14c. A locomotive radius bar fulcrum hav ing a pivot pin bearing and a support cu gaging element adjacent to said bearing.

15. A locomotive truck radius bu r fulcrum having a pivot bearing and having a support engaging element and a thrust pad engaging element in spaced relation to said bearin a In testimony signature this 26th day WILLIAM o. ASHE.

tending between an integral fulcrum whereof I hereunto aiiix my of March, 1927. 

